Preparation and targeting capability of corona forming in human ovarian plasma
10.16438/j.0513-4870.2020-1854
- VernacularTitle:卵巢癌患者血浆蛋白冠的形成及其对纳米粒靶向性的影响
- Author:
Ya-zhen WANG
1
;
Tao GONG
1
;
Yuan LI
2
;
Hui-le GAO
1
Author Information
1. West China School of Pharmacy, Sichuan University, Chengdu 610064, China
2. Obstetrics and Gynecology Department, Peking University Third Hospital, Beijing 100191, China
- Publication Type:Research Article
- Keywords:
protein corona;
rug targeting;
ovarian neoplasm;
polylactic acid-polyglycolic acid copolymer;
folic acid
- From:
Acta Pharmaceutica Sinica
2021;56(2):604-609
- CountryChina
- Language:Chinese
-
Abstract:
After entering the physiological environment, proteins and other biomolecules bind to the nanoparticles' surface, called protein corona. The corona establishes a new bio-interface that affects its physicochemical properties and biological behaviors. Variations in types and contents of human plasma proteins during the different physiological states can substantially change the composition and effects of the corona. With folic acid (FA)-modified polylactic acid-polyglycolic acid copolymer (PLGA) nanoparticles, the formation of protein coronas and their influence on the targeting capability are studied in healthy and ovarian human plasma. All human plasma samples were collected at the Peking University Third Hospital and this study protocol has been approved by Peking University Third Hospital Medical Science Research Ethics Committee (2019-409-1). Dynamic light scattering measurements demonstrated a 10-40 nm increase in their size distributions and a 30 mV decreased in their absolute zeta-potential since protein corona-coated PLGA-PEG and PLGA-FA were formed. The SDS-PAGE analysis showed the composition of the protein coronas from ovarian and healthy plasma in PLGA-FA were markedly distinct, particularly for proteins with molecular weight of 45, 110 and >180 kDa. Flow cytometry indicated that the absorption of ovarian plasma in PLGA-FA led to a lower cellular uptake by SKOV3 cells. Our results suggest that in vitro formed ovarian plasma protein corona could shield targeting molecules and reduced receptor-mediated internalization. The results of this pilot study will provide evidence of the effectiveness of active targeting nanoparticles under pathologic conditions. Additionally, the protein corona in different diseases is emerging as a key point; thus, a comprehensive understanding could accelerate clinical translation of functionalized nanoparticles.
